Numbers beginning with 801-468

Salt Lake City, often shortened to Salt Lake or SLC, is the capital and the most populous city in the state of Utah. With an estimated population of 189,314 in 2012, the city lies in the core of the Salt Lake City metropolitan area, which has a total population of 1,175,905. Salt Lake City is further situated in a larger urban area known as the Wasatch Front, which has a population of 2,350,274. It is one of only two major urban areas in the Great Basin (the other being Reno, Nevada), and the largest in the Intermountain West. source

The main area code, 801, was one of the original area codes created in 1947, and served the entire state of Utah. On September 21, 1997, 801 was restricted to the Wasatch Front, while area code 435 was assigned to the counties outside of it. 385 is an overlay area code covering the same area as 801 which entered service on 1 June 2008. source